well this kinda brushes over the sleep after death or what happens to our spirit after we die debate, which I and my church hold to the belief that we do not sleep, our spirits go directly to heaven or hell, so to answer your question, no, we do not communicate with the dead. remember when lazarus went to heaven but the rich man didn't then the rich man was wanting to warn his brothers so they wouldn't end up in such a place, but they didn't let him? and nor was lazarus able to leave heaven to put a drop of water on his tongue. i had a dad who died of cancer in various places even some that was visible from his eye socket, from asbestos, anyways i don't sit and wonder if he went to heaven and hell, nor should you with your dad. it's not healthy and we do not truly know for certain, so it is in the hands of the Judge and not our own.
Job 17:13 If I wait, the grave is mine house: I have made my bed in the darkness.
Job 17:14 I have said to corruption, Thou art my father: to the worm, Thou art my mother, and my sister.
Job 17:15 And where is now my hope? as for my hope, who shall see it?
Job 17:16 They shall go down to the bars of the pit, when our rest together is in the dust.
Psa 6:5 For in death there is no remembrance of thee: in the grave who shall give thee thanks?
Psa 49:12 Nevertheless man being in honour abideth not: he is like the beasts that perish.
Psa 146:4 His breath goeth forth, he returneth to his earth; in that very day his thoughts perish.
Ecc 9:5 For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten.
Ecc 9:10 Whatsoever thy hand findeth to do, do it with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, whither thou goest.